SEATTLE – Of course, Los Angeles was going to make it tough on themselves. We should have seen it coming.

Even after taking a 3-0 lead in the first leg of their Western Conference final against the Seattle Sounders, the defending Major League Soccer champions were destined to revert to their drama-inducing selves, a quality that saw the team eliminated from CONCACAF Champions League by Toronto FC, plummet to the bottom of the West to start the season, fall behind against Vancouver in the playoffs’ knockout round, and lose at home to San Jose before eventually eliminating the Supporters’ Shield winners.

Those were the tea leaves that foretold LA’s Sunday struggles. The Galaxy were second-best all night, giving back two goals before a late Robbie Keane penalty kick secured the Galaxy’s third finals birth in four seasons. With a 4-2 (aggregate) win over Seattle, LA earned the chance to become the first team in five years to retain the league title.

“We know we didn’t play particularly well,” Galaxy head coach Bruce Arena said. “We knew it’d be challenging. The objective was to advance to the MLS Cup final. That was accomplished.”

“Seattle played quite well. No question about that. Having said all that, we won this competition 4-2 and deserve to move forward.”

It’s a bottom line that belies the difficulty of the accomplishment. During Sunday’s first 20 minutes, Seattle’s three lead attackers – Johnson, Fredy Montero, and a surprisingly dominant Steve Zakuani – tore apart a Galaxy defense that was being beaten by every trick Seattle tried: combination play and one-on-one attacks; balls over the top and passes played through the line; considered build-up or quick, direct strikes.

“It’s probably been a while since a team came out and put that much pressure on us,” Galaxy right back Sean Franklin conceded, the former all-star forced to bear the brunt of a resurgent performance from Zakuani, who for the first time since suffering a broken leg in April 2011 showed signs of his former explosive self.

Franklin wasn’t the only Galaxy player to struggle early. Omar Gonzalez couldn’t contain Johnson. Rookie Tommy Meyer was out of sync with his partner. Perhaps most worrisome, LA couldn’t hold the ball, the team unable to adjust to a CenturyLink Stadium surface made slick by the downpour that fell during the match’s first half hour. On those occasions the defense was able to withstand Seattle’s pressure, the Galaxy would immediately give the ball back.

“We didn’t pass well tonight,” Arena said when asked about LA’s poor start. “The conditions certainly helped. It was a little bit difficult passing the ball. You could see our players [were] not fully confident on the surface.”

“If you watch the first 20 minutes, it looked as if they were playing on ice and they were playing on natural (grass),” according to David Beckham. “It was very frantic. They were passing the ball and keeping the ball, and we weren’t.”

Faced with problems in defense and midfield, LA did was they’ve done all season, resorting to the most-basic of solutions: Just play better. No tactical adjustments were needed. Bruce Arena didn’t need new personnel. His players just needed to execute.

“We understood we needed to pass the ball a little bit more,” Beckham said. “The game started to slow down … As soon as we put some passes together, we went through them and created chances.”

Still, the Galaxy were never their normal selves. At no point did they show the form that’d made them the league’s best team over the season’s second half. They team that took apart San Jose and Seattle in consecutive matches? They never showed up on Sunday, though to say that was all Los Angeles’s fault would be short-changing Seattle.

“They pressured us for every ball, played into feet,” Arena said of Seattle’s performance. “They positioned themselves better and were much more aggressive for second balls.

“Basically, on the night, they out-worked us.”

Seattle’s pressure left Los Angeles with no shots on frame through the first 45 minutes, and although the visitors had gained a greater foothold on the match by halftime, the Glaaxy still conceded 12 minutes after intermission, Zach Scott’s header off a Christian Tiffert corner pulling Seattle within one.

Then, as predictably as they allowed drama to undermine their otherwise smooth road to the final, Los Angeles regained their focused. Eleven minutes after Scott pulled Seattle within one, Keane created a penalty kick, eventually restoring a two-goal lead. Though Seattle had one good opportunity late, the Galaxy defense came together, aggressive play from goalkeeper Josh Saunders complementing a renewed organization from the back line.

“I thought Tommy and Omar did a good job of winning a few more balls, and we were picking up the second ones as well,” galaxy defender Todd Dunivant said, describing the defense’s improvement throughout the game. “We were able to break out a little bit and not just constantly be back and be pinned in with them firing from all sides. I think that was the biggest difference. We were winning the first ball and then cleaning up the second.”

Better passing, organized defending, winning the second balls. It was the formula Los Angeles used to play out the final minutes of a performance which became a metaphor for their season. It was unduly dramatic and failed to live up to the best team ever billing the champs accrued in the offseason. But it got the job done.

“Escape maybe is the right word, I don’t know,” Dunivant said. “We’re going through. To us, that’s the most important thing.

“If we’d won 3-0, we’d still be going through. We made it difficult on our fans and everyone on the sidelines, but we still got it done.”

If that was an implicit apology from the Galaxy left back, it wasn’t one endorsed by Bruce Arena.

“It’s been a really challenging season, and it’s taken a lot of character and talent to get where we are today,” Arena explained.

“After 14 games, we basically conceded the Supporters’ Shield. The objective then was to get into the playoffs. We went on a run that was fabulous. Last 17 games of the season we had 34 points. Thank God [the media wasn’t] smart enough to figure that out so we could kind of do it quietly and get ourselves going again.

“We’re back in the final, and hopefully we can have an improved performance from tonight.”